US4471699A - Projectiles for smooth bore shooting guns - Google Patents
Projectiles for smooth bore shooting guns Download PDFInfo
- Publication number
- US4471699A US4471699A US06/479,793 US47979383A US4471699A US 4471699 A US4471699 A US 4471699A US 47979383 A US47979383 A US 47979383A US 4471699 A US4471699 A US 4471699A
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- US
- United States
- Prior art keywords
- bullet
- projectile
- wad
- fins
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B7/00—Shotgun ammunition
- F42B7/02—Cartridges, i.e. cases with propellant charge and missile
- F42B7/10—Ball or slug shotgun cartridges
Definitions
- the present invention relate to a projectile for smooth bore hunting guns. More specifically, it relates to a composite projectile containing a metal part, essentially of lead, which carries out the function of a conventional bullet for smooth bore hunting guns, and a plastic material portion associated therewith, which carries out the functions of a wad and of a flight control element.
- Projectiles for smooth bore hunting guns having various forms are known, in particular: spherical bullets; cylindrical bullets of the type called Stendebach; coniccylindrical bullets of the Brenneke type, etc. All such types of bullets have advantages and disadvantages, but none of them is completely satisfactory, in particular from the ballistic view-point, i.e., from the viewpoint of precision of the shot.
- a bullet which has a spherical shape produces the so called "wind" between the bullet and the inside of the bores, as it is necessary that the diameter of the bullet be smaller than the caliber of the narrowest portion of the gun, such wind having a strong negative influence on the ballistic yield.
- the Stendebach type cylindrical bullets are strongly influenced by the tail wind and turn over in the air with negative consequences to precision, and further have other drawbacks due to their high deformability if they come into collision with foreign bodies before hitting the target.
- the Brenneke type conic-cylindric bullets are not sufficiently deformable in the direction of the diameter and therefore must be built with lead ribs to improve their stability, but are insufficiently precise due to an unfavorable form coefficient and inadequate stability in their trajectory.
- the object of the present invention is to provide a projectile for a smooth bore gun, the projectile including the combination of a metal bullet and a wad-flight control element of plastic material in the form of a container firmly connected to the bullet and which contains the same, an amortizing portion and a cup for sealing off the propellant gases, the amortizing portion and sealing cup also operating as the flight control element of the projectile during flight.
- the bullet is a metal body, preferably of lead, which may have a cylindric-conical form, but which may also have different forms, and which is provided with fins having a thin profile.
- the wad-flight control element is provided, in its container part, with external longitudinal fins.
- the projectile constituted by the association of the metal bullet and of the wad-flight control element conforms to the following critical dimensional characteristics.
- the bullet--preferably made of antimony lead, or of any other suitable metal material-- is under-dimensioned with respect to the caliber dimensions of the ball; the caliber dimensions are reached through the aforesaid container and particularly through the aforesaid plastic fins.
- the plastic material of which the wad-flight control element is made partly penetrate into the inside of the metal body, thereby helping the container to retain the bullet, or that the wad-flight control element be formed in such a way as to have undercut portions which retain the bullet from sliding away from the container.
- the projectile is guided while it travels through the bore, on the one hand by the propellant gases sealing cup, on the other by the amortizing part of the wad itself, a preferred form of which will be described hereinafter, and also by the plastic material fins which are located concentrically and longitudinally with respect to the axis of the projectile on the outside of the container.
- the wad-flight control element is preferably made of polyethylene.
- the projectile of the invention may be formed by a process including injecting, preferably by pressure injection, a plastic material to form the wad-flight control element into a die wherein the bullet is positioned on an insert.
- the fins of the bullet serve to center the bullet as an insert in the injection molding die.
- the wad-flight control element is constituted by a container part and by a part which, taken alone, may be considered as a wad, comprising an amortizing part and a propellent gas sealing cup.
- the preferred structure of the wad is that which has been illustrated, for a separate wad for shot cartridges, in Italian Utility Model Application 21258 B/78.
- Such structure which has an essentially amortizing function when used on a shot cartridge, surprisingly has been found to be particularly adapted to act as a flight control element in the present structure, in which it is a part of the projectile and travels therewith along the entire flight path.
- Such preferred structure is characterized by the fact that, besides comprising the gas sealing cup, which taken by itself is a common element, it also comprises two discoidal elements perpendicular to the projectile axis and a series of partitions parallel to the projectile axis and which connect the first of the two discoidal elements to the sealing cup, the second of the two discoidal elements to the bullet container, and the discoidal elements to one another.
- the elements which connect the two discoidal elements to one another are staggered with respect to those which connect each element, on one side with the sealing disc and on the other with the container, and have a length which is preferably smaller than the projectile radius.
- the structure is dimensioned in such a way that the partitions act as compressed spacing elements and remain practically undeformed in the overall deformation of the wad during firing, the deformation being on the contrary constituted by the bending of the two aforesaid discoidal elements interposed between the sealing cup and the container.
- This behaviour is entirely opposite to those of known wads, in particular of the wad-flight control element described in the earlier British Patent Specification No. 1,348,320 wherein the amortizing elements, which become deformed at the moment of the firing are those interposed between the discoidal elements perpendicular to the projectile axis.
- FIG. 1 is a perspective view of a projectile according to the invention
- FIG. 2 is a lateral view and partly an axial cross-section of the same projectile
- FIG. 3 is a plan view from above of the same projectile
- FIG. 4 is a transverse cross-section of the same projectile, taken on the two staggered planes IV--IV' indicated in FIG. 2;
- FIG. 5 is a schematic illustration of a process for manufacturing the projectile.
- the projectile comprises a metal bullet 11, partially seen in cross-section in FIGS. 2 and 4 and having a ogival point 12. Below the ogive, the bullet has a first portion having a cylindrical wall 13, therebelow it has a second portion having a cylindrical wall with a greater diameter 14, and a third cylindrical portion having a wall with minimum diameter 15. On wall 14 are formed centering fins 16, the function of which will be described hereinafter.
- a wad-flight control element is generally indicated at 10 and comprises, from the bottom to the top, a cup 17 for sealing discharge gases and which also acts as a projectile flight control element, an intermediate amortizing portion 18 having a reticular structure as will be discussed below, and thereabove a container 19 externally provided with ribs 20 and internally shaped in a way corresponding to the shape of the bullet.
- the intermediate amortizing part 18 is constituted by a series of partitions positioned in planes parallel to the projectile axis and a series of discoidal elements or diaphragms, located in perpendicular planes.
- the first partitions 21, which are three, are connected to the sealing cup 17 and to a disc 22, the second partitions 23, which are two, are connected to disc 22 and to a disc 24, and the third partitions 25, which are also three, are connected to the disc 24 and to the discoidal bottom 26 of container 19.
- the shape of the amortizing part is not new per se, since it is similar to those already used in separate wads for shot cartridges, as in the cited previous utility model application, however it acquires in this projectile a new function and achieves a new technical effect.
- the projectile which is the object of the invention is made as illustrated in FIG. 5, in the following way.
- a die generally indicated at 30, comprises, from the bottom to the top in FIG. 5, a cylindrical element 31 which defines the cylindrical surface which externally envelops the projectile, and on the inner wall of which the fins 16 of the bullet are centered at 32 to position the bullet within the die.
- the upper part of element 31 is provided with projections 33 which define depressions 29 of container 19.
- the ogive 12 of the bullet rests on an element 34, while an element 35 defines the upper edge of container 19.
- a cylindrical element 36 is positioned, wherein pieces 37 are located which have various shapes and determine void zones to form the amortizing portion 18 of wad-flight control element 10, elements 37 being in a number and of a configuration which are necessary to permit their extraction after the die casting operation.
- an element 38 is positioned, internally of which a is positioned a core 39 which defines the lower surface of the cup 17, the lower lateral edges 40 whereof (FIG. 2) are defined by the inner surface of element 38.
- Numeral 41 indicates a nozzle for conveying the plastic material.
- the element 31 In order to manufacture the projectile, the element 31 is positioned with the parts cooperating therewith and the bullet is set in place, the position of the bullet being determined by the abutment of its ogive and by the centering of the fins 16. Thereafter the assemblage of the die is completed and finally the plastic material is introduced and fills all the empty spaces, thereby to define the wad-flight control element.
- the plastic material is obviously any convenient thermoplastic material, conveniently a polyolefin, such as polyethylene, polypropylene or any other suitable material.
- the natural shrinkage of the plastic material after the die casting operation serves firmly to lock the bullet within the container and to retain it therein, the bullet being even more firmly retained because of the fact that its cylindrical portion 14 and the fins 16 abut with a shoulder 42 (FIG. 2) of the container.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Vibration Dampers (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A projectile for a smooth bore gun includes a metal bullet, substantially de of lead, and a wad-flight control element of plastic material. The bullet is constituted by a metal body provided with an ogive with centering fins and comprises one or more cylindrical segments. The wad-flight control element comprises a container, connected to the bullet and containing the same, an amortizing portion and a cup for sealing off propellant gases. The amortizing portion and the sealing cup act to control the projectile during flight.
Description
This is a division of application Ser. No. 199,039, filed Oct. 20, 1980.
(a) Field of the Invention
The present invention relate to a projectile for smooth bore hunting guns. More specifically, it relates to a composite projectile containing a metal part, essentially of lead, which carries out the function of a conventional bullet for smooth bore hunting guns, and a plastic material portion associated therewith, which carries out the functions of a wad and of a flight control element.
(b) Prior Art
Projectiles for smooth bore hunting guns having various forms are known, in particular: spherical bullets; cylindrical bullets of the type called Stendebach; coniccylindrical bullets of the Brenneke type, etc. All such types of bullets have advantages and disadvantages, but none of them is completely satisfactory, in particular from the ballistic view-point, i.e., from the viewpoint of precision of the shot. A bullet which has a spherical shape produces the so called "wind" between the bullet and the inside of the bores, as it is necessary that the diameter of the bullet be smaller than the caliber of the narrowest portion of the gun, such wind having a strong negative influence on the ballistic yield. The Stendebach type cylindrical bullets are strongly influenced by the tail wind and turn over in the air with negative consequences to precision, and further have other drawbacks due to their high deformability if they come into collision with foreign bodies before hitting the target. The Brenneke type conic-cylindric bullets are not sufficiently deformable in the direction of the diameter and therefore must be built with lead ribs to improve their stability, but are insufficiently precise due to an unfavorable form coefficient and inadequate stability in their trajectory.
It is to be added that the presently known bullets cannot be fired from throttled barrels or necks because of the danger that the barrels may swell out at the moment of firing. Actually, when the projectile passes through the neck, it has a friction on the inner walls of the barrel and it may be stopped for a very short instant and slowed in its travel along the axis of the barrel.
It has been proposed by some, in order to improve the ballistic yield of known bullets, to provide bullets with a flight control element, which is practically constituted by the wad of the propellant. The known wads have a sealing function with respect to the gases developed by the propellant charge and an amortizing function in the firing phase, since they are interposed between the bullet and the charge. A type of wad which may also act as flight control element for gun bullets is described in British Patent Specification No. 1,348,320. Such wad has a discoid base which seals off the propellant gases, an upper part which is destined to be connected with the bullet, and an intermediate zone provided with a discoid piece and with amortizing means positioned between the discoid piece and the previously named parts. At the moment of firing, the resistance of the wad along the axis of the cartridge is sufficient to cause its foremost portion to penetrate into a recess which is defined in the bullet and to remain firmly connected thereto to accompany it in its flight.
Such a combination of bullet and wad has considerable disadvantages, on one hand because the described wad is not per se adapted to carry out its functions with efficiency, and on the other because the way in which it is connected to the bullet at the moment of firing is inefficient and requires an excessive rigidity of the wad itself, and finally because the structure of the wad is not suited to efficient operation as a flight control element.
The object of the present invention is to provide a projectile for a smooth bore gun, the projectile including the combination of a metal bullet and a wad-flight control element of plastic material in the form of a container firmly connected to the bullet and which contains the same, an amortizing portion and a cup for sealing off the propellant gases, the amortizing portion and sealing cup also operating as the flight control element of the projectile during flight.
The bullet is a metal body, preferably of lead, which may have a cylindric-conical form, but which may also have different forms, and which is provided with fins having a thin profile. The wad-flight control element is provided, in its container part, with external longitudinal fins.
The projectile constituted by the association of the metal bullet and of the wad-flight control element conforms to the following critical dimensional characteristics. First of all, the bullet--preferably made of antimony lead, or of any other suitable metal material--is under-dimensioned with respect to the caliber dimensions of the ball; the caliber dimensions are reached through the aforesaid container and particularly through the aforesaid plastic fins.
It is possible, but not necessary, that in order better to lock the two parts of the system together, the plastic material of which the wad-flight control element is made, partly penetrate into the inside of the metal body, thereby helping the container to retain the bullet, or that the wad-flight control element be formed in such a way as to have undercut portions which retain the bullet from sliding away from the container.
At the moment of the firing, the projectile is guided while it travels through the bore, on the one hand by the propellant gases sealing cup, on the other by the amortizing part of the wad itself, a preferred form of which will be described hereinafter, and also by the plastic material fins which are located concentrically and longitudinally with respect to the axis of the projectile on the outside of the container.
This permits the use of the projectile in hunting guns both having a cylindrical barrel and having a necked barrel, because there is no possiblity that the bullet will be deformed by friction in the neck of the gun, which would have negative consequences on safety, and the negative result of changing the projectile shape.
The wad-flight control element, with its container, is preferably made of polyethylene.
The projectile of the invention may be formed by a process including injecting, preferably by pressure injection, a plastic material to form the wad-flight control element into a die wherein the bullet is positioned on an insert.
The fins of the bullet serve to center the bullet as an insert in the injection molding die.
The wad-flight control element is constituted by a container part and by a part which, taken alone, may be considered as a wad, comprising an amortizing part and a propellent gas sealing cup. The preferred structure of the wad is that which has been illustrated, for a separate wad for shot cartridges, in Italian Utility Model Application 21258 B/78. Such structure, which has an essentially amortizing function when used on a shot cartridge, surprisingly has been found to be particularly adapted to act as a flight control element in the present structure, in which it is a part of the projectile and travels therewith along the entire flight path. Such preferred structure is characterized by the fact that, besides comprising the gas sealing cup, which taken by itself is a common element, it also comprises two discoidal elements perpendicular to the projectile axis and a series of partitions parallel to the projectile axis and which connect the first of the two discoidal elements to the sealing cup, the second of the two discoidal elements to the bullet container, and the discoidal elements to one another. The elements which connect the two discoidal elements to one another are staggered with respect to those which connect each element, on one side with the sealing disc and on the other with the container, and have a length which is preferably smaller than the projectile radius. The structure is dimensioned in such a way that the partitions act as compressed spacing elements and remain practically undeformed in the overall deformation of the wad during firing, the deformation being on the contrary constituted by the bending of the two aforesaid discoidal elements interposed between the sealing cup and the container. This behaviour is entirely opposite to those of known wads, in particular of the wad-flight control element described in the earlier British Patent Specification No. 1,348,320 wherein the amortizing elements, which become deformed at the moment of the firing are those interposed between the discoidal elements perpendicular to the projectile axis.
An embodiment of the invention will now be described for exemplary purposes, with reference to the attached drawings, wherein:
FIG. 1 is a perspective view of a projectile according to the invention;
FIG. 2 is a lateral view and partly an axial cross-section of the same projectile;
FIG. 3 is a plan view from above of the same projectile;
FIG. 4 is a transverse cross-section of the same projectile, taken on the two staggered planes IV--IV' indicated in FIG. 2; and
FIG. 5 is a schematic illustration of a process for manufacturing the projectile.
With reference now to FIGS. 1 to 4, the projectile comprises a metal bullet 11, partially seen in cross-section in FIGS. 2 and 4 and having a ogival point 12. Below the ogive, the bullet has a first portion having a cylindrical wall 13, therebelow it has a second portion having a cylindrical wall with a greater diameter 14, and a third cylindrical portion having a wall with minimum diameter 15. On wall 14 are formed centering fins 16, the function of which will be described hereinafter.
A wad-flight control element is generally indicated at 10 and comprises, from the bottom to the top, a cup 17 for sealing discharge gases and which also acts as a projectile flight control element, an intermediate amortizing portion 18 having a reticular structure as will be discussed below, and thereabove a container 19 externally provided with ribs 20 and internally shaped in a way corresponding to the shape of the bullet.
The intermediate amortizing part 18 is constituted by a series of partitions positioned in planes parallel to the projectile axis and a series of discoidal elements or diaphragms, located in perpendicular planes. The first partitions 21, which are three, are connected to the sealing cup 17 and to a disc 22, the second partitions 23, which are two, are connected to disc 22 and to a disc 24, and the third partitions 25, which are also three, are connected to the disc 24 and to the discoidal bottom 26 of container 19. The shape of the amortizing part is not new per se, since it is similar to those already used in separate wads for shot cartridges, as in the cited previous utility model application, however it acquires in this projectile a new function and achieves a new technical effect.
The projectile which is the object of the invention is made as illustrated in FIG. 5, in the following way.
A die, generally indicated at 30, comprises, from the bottom to the top in FIG. 5, a cylindrical element 31 which defines the cylindrical surface which externally envelops the projectile, and on the inner wall of which the fins 16 of the bullet are centered at 32 to position the bullet within the die. The upper part of element 31 is provided with projections 33 which define depressions 29 of container 19. The ogive 12 of the bullet rests on an element 34, while an element 35 defines the upper edge of container 19.
Above (with respect to FIG. 5) the portion of the die which has been described, a cylindrical element 36 is positioned, wherein pieces 37 are located which have various shapes and determine void zones to form the amortizing portion 18 of wad-flight control element 10, elements 37 being in a number and of a configuration which are necessary to permit their extraction after the die casting operation. Further above, an element 38 is positioned, internally of which a is positioned a core 39 which defines the lower surface of the cup 17, the lower lateral edges 40 whereof (FIG. 2) are defined by the inner surface of element 38. Numeral 41 indicates a nozzle for conveying the plastic material.
In order to manufacture the projectile, the element 31 is positioned with the parts cooperating therewith and the bullet is set in place, the position of the bullet being determined by the abutment of its ogive and by the centering of the fins 16. Thereafter the assemblage of the die is completed and finally the plastic material is introduced and fills all the empty spaces, thereby to define the wad-flight control element.
The plastic material is obviously any convenient thermoplastic material, conveniently a polyolefin, such as polyethylene, polypropylene or any other suitable material.
The natural shrinkage of the plastic material after the die casting operation serves firmly to lock the bullet within the container and to retain it therein, the bullet being even more firmly retained because of the fact that its cylindrical portion 14 and the fins 16 abut with a shoulder 42 (FIG. 2) of the container.
Claims (4)
1. A projectile for use in a smooth bore gun, said projectile comprising:
a metal bullet having a forward end and a rearward end; and
wad-flight control means, formed of a plastic material and fixed to said bullet, for guiding the projectile through a bore during firing and for controlling the flight of the projectile after leaving the bore, said wad-flight control means comprising:
a container portion rigidly fixed to and containing said bullet;
an intermediate portion integral with said container portion and extending rearwardly therefrom and from said rearward end of said bullet;
a sealing cup portion integral with said intermediate portion and extending rearwardly therefrom;
said container having extending outwardly therefrom longitudinal fins; and
said intermediate portion including at least one discoidal element extending transverse to the longitudinal axis of the projectile and a plurality of partitions connecting said discoidal element to said container portion and to said sealing cup portion, said partitions extending parallel to said longitudinal axis.
2. A projectile as claimed in claim 1, wherein said forward end of said bullet is of ogival configuration.
3. A projectile as claimed in claim 1, wherein said bullet has an intermediate section having extending therefrom fins, and cylindrical sections forwardly and rearwardly of said intermediate section and of smaller diameter than said intermediate section, wherein said container portion surrounds said cylindrical sections and extends between said fins extending outwardly from said intermediate section of said bullet.
4. A projectile as claimed in claim 3, wherein said fins of said intermediate section of said bullet and said fins of said container portion extend parallel to said longitudinal axis of the projectile.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT26831A/79 | 1979-10-26 | ||
IT26831/79A IT1196905B (en) | 1979-10-26 | 1979-10-26 | SMOOTH BARREL HUNTED SHOTGUNS |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/199,039 Division US4419318A (en) | 1979-10-26 | 1980-10-20 | Process for forming projectiles for smooth bore shooting guns |
Publications (1)
Publication Number | Publication Date |
---|---|
US4471699A true US4471699A (en) | 1984-09-18 |
Family
ID=11220328
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/199,039 Expired - Lifetime US4419318A (en) | 1979-10-26 | 1980-10-20 | Process for forming projectiles for smooth bore shooting guns |
US06/479,793 Expired - Fee Related US4471699A (en) | 1979-10-26 | 1983-03-28 | Projectiles for smooth bore shooting guns |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/199,039 Expired - Lifetime US4419318A (en) | 1979-10-26 | 1980-10-20 | Process for forming projectiles for smooth bore shooting guns |
Country Status (15)
Country | Link |
---|---|
US (2) | US4419318A (en) |
AT (1) | AT369162B (en) |
BE (1) | BE885882A (en) |
DE (1) | DE3039880A1 (en) |
DK (1) | DK157417C (en) |
ES (2) | ES265663Y (en) |
FR (1) | FR2468870B1 (en) |
GB (1) | GB2061470B (en) |
GR (1) | GR70668B (en) |
IT (1) | IT1196905B (en) |
LU (1) | LU82881A1 (en) |
NL (1) | NL8005697A (en) |
NO (1) | NO148307C (en) |
PT (1) | PT71909B (en) |
SE (1) | SE447508B (en) |
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US4779535A (en) * | 1987-10-16 | 1988-10-25 | Nagatoshi Maki | Slug assembly for shotgun shotshell |
US4895076A (en) * | 1989-03-08 | 1990-01-23 | The United States Of America As Represented By The Secretary Of The Army | Sub-caliber trainer round |
US4913056A (en) * | 1988-05-07 | 1990-04-03 | Wilhelm Brenneke Kg Fabrikation Von Jagdgeschossen | Cartridge |
US5275083A (en) * | 1990-05-14 | 1994-01-04 | The United States Of America As Represented By The United States Department Of Energy | Skirted projectiles for railguns |
US5408931A (en) * | 1993-10-01 | 1995-04-25 | Tallman; Harvey A. | Shotgun ammunition |
US5479861A (en) * | 1994-01-03 | 1996-01-02 | Kinchin; Anthony E. | Projectile with sabot |
WO1999051933A1 (en) * | 1998-04-03 | 1999-10-14 | Sabot Technologies, Inc. | Sabot pressure wad |
US6363856B1 (en) * | 1999-06-08 | 2002-04-02 | Roscoe R. Stoker, Jr. | Projectile for a small arms cartridge and method for making same |
US6484827B2 (en) | 1999-03-26 | 2002-11-26 | Deere & Company | Drive and steer vehicle |
US6502516B1 (en) | 2000-01-18 | 2003-01-07 | Anthony E. Kinchin | Sabot shotgun slug assembly |
US6547685B2 (en) | 1999-01-22 | 2003-04-15 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transaxle apparatus |
US20040079256A1 (en) * | 2002-08-21 | 2004-04-29 | Mcmurray Christopher R. | Lead attached sabot slug |
US6899034B1 (en) * | 1998-06-30 | 2005-05-31 | Charles H. Glover | Controlled energy release projectile |
US20050155511A1 (en) * | 2003-12-29 | 2005-07-21 | Neil Keegstra | Extended range less lethal projectile |
US7000547B2 (en) | 2002-10-31 | 2006-02-21 | Amick Darryl D | Tungsten-containing firearm slug |
US7640860B1 (en) * | 1998-06-30 | 2010-01-05 | Glover Charles H | Controlled energy release projectile |
US10082374B2 (en) | 2014-08-01 | 2018-09-25 | James Nicholas Marshall | Magnetic ammunition for air guns and biodegradable magnetic ammunition for airguns |
US20230043486A1 (en) * | 2022-09-16 | 2023-02-09 | Dahua XIANG | High-precision spherical single-headed bullet |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT374583B (en) * | 1982-08-03 | 1984-05-10 | Oregon Ets Patentverwertung | HOUSING OF A BULLET TO BE SHOWN FROM A TUBE |
FR2627854B1 (en) * | 1988-02-29 | 1990-08-10 | Denis Jean Pierre | AMMUNITION FOR FIREARMS, IN PARTICULAR HUNTING AMMUNITION |
US6291980B1 (en) | 1999-10-13 | 2001-09-18 | Quantum Corporation | High-resolution measurement of phase shifts in high frequency phase modulators |
DE212014000272U1 (en) * | 2014-08-26 | 2017-04-13 | Renat Abdulberovich Yusupov | Caliber bullet with rigid attachment to a housing of the stabilization surface |
IT201800006218A1 (en) * | 2018-06-12 | 2019-12-12 | Ballistic body, exclusively for hunting, sporting and similar use. |
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GB1348320A (en) * | 1970-08-27 | 1974-03-13 | Kawaguchiya Firearms | Wads for cartridges |
US4063511A (en) * | 1976-07-21 | 1977-12-20 | Bullard James M | Spinning shot gun projectile |
US4164903A (en) * | 1977-09-08 | 1979-08-21 | Bouza Gordon F | Shotgun wad for use as a practice projectile |
US4295426A (en) * | 1978-03-22 | 1981-10-20 | Snia Viscosa Societa Nazionale Industria Applicazioni Viscosa S.P.A. | Plastic wads and wad assemblies for shot cartridges |
US4301733A (en) * | 1978-04-22 | 1981-11-24 | Moises Arciniega Blanco | Bullet for smooth bore shotguns |
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US478020A (en) * | 1892-06-28 | Cartridge | ||
US1153197A (en) * | 1915-01-12 | 1915-09-14 | Metal Molds Compressed Castings Company | Art of casting and uniting metals. |
DE2444181A1 (en) * | 1974-09-16 | 1976-04-01 | Mario Ferrandi | Small calibre bullet for shotguns - is held in cartridge case with envelope discarded on firing |
FR2300319A1 (en) * | 1975-02-07 | 1976-09-03 | Cleard Gilbert | Shot gun cartridge with plastics sleeve - has grooved longitudinally metal part with conical nose and hollow wad at rear |
FR2314464A1 (en) * | 1975-06-11 | 1977-01-07 | Bertrand Jacques | Hunting gun cartridge wad - has seals joined by arched legs with components limiting amount of crushing |
IT1012126B (en) * | 1976-02-25 | 1977-03-10 | Snia Viscosa | IMPROVEMENT TO BOR RAY SYSTEMS FOR HUNTING AND SHOOTING SHOTSHELLS AND RELATED BORRAYS AND IMPROVED BORRAGE SYSTEMS |
US4108074A (en) * | 1977-04-27 | 1978-08-22 | Avco Corporation | Frangible target practice projectile |
-
1979
- 1979-10-26 IT IT26831/79A patent/IT1196905B/en active
-
1980
- 1980-10-08 GB GB8032492A patent/GB2061470B/en not_active Expired
- 1980-10-11 GR GR63142A patent/GR70668B/el unknown
- 1980-10-13 PT PT71909A patent/PT71909B/en unknown
- 1980-10-16 NL NL8005697A patent/NL8005697A/en not_active Application Discontinuation
- 1980-10-20 US US06/199,039 patent/US4419318A/en not_active Expired - Lifetime
- 1980-10-22 DE DE19803039880 patent/DE3039880A1/en active Granted
- 1980-10-22 AT AT0521680A patent/AT369162B/en not_active IP Right Cessation
- 1980-10-22 SE SE8007412A patent/SE447508B/en not_active IP Right Cessation
- 1980-10-23 LU LU82881A patent/LU82881A1/en unknown
- 1980-10-24 NO NO803191A patent/NO148307C/en unknown
- 1980-10-24 DK DK449880A patent/DK157417C/en not_active IP Right Cessation
- 1980-10-24 ES ES1980265663U patent/ES265663Y/en not_active Expired
- 1980-10-24 FR FR8022879A patent/FR2468870B1/en not_active Expired
- 1980-10-24 BE BE0/202598A patent/BE885882A/en not_active IP Right Cessation
-
1981
- 1981-11-16 ES ES507171A patent/ES507171A0/en active Granted
-
1983
- 1983-03-28 US US06/479,793 patent/US4471699A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1348320A (en) * | 1970-08-27 | 1974-03-13 | Kawaguchiya Firearms | Wads for cartridges |
US4063511A (en) * | 1976-07-21 | 1977-12-20 | Bullard James M | Spinning shot gun projectile |
US4164903A (en) * | 1977-09-08 | 1979-08-21 | Bouza Gordon F | Shotgun wad for use as a practice projectile |
US4295426A (en) * | 1978-03-22 | 1981-10-20 | Snia Viscosa Societa Nazionale Industria Applicazioni Viscosa S.P.A. | Plastic wads and wad assemblies for shot cartridges |
US4301733A (en) * | 1978-04-22 | 1981-11-24 | Moises Arciniega Blanco | Bullet for smooth bore shotguns |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4779535A (en) * | 1987-10-16 | 1988-10-25 | Nagatoshi Maki | Slug assembly for shotgun shotshell |
US4913056A (en) * | 1988-05-07 | 1990-04-03 | Wilhelm Brenneke Kg Fabrikation Von Jagdgeschossen | Cartridge |
US4895076A (en) * | 1989-03-08 | 1990-01-23 | The United States Of America As Represented By The Secretary Of The Army | Sub-caliber trainer round |
US5275083A (en) * | 1990-05-14 | 1994-01-04 | The United States Of America As Represented By The United States Department Of Energy | Skirted projectiles for railguns |
US5408931A (en) * | 1993-10-01 | 1995-04-25 | Tallman; Harvey A. | Shotgun ammunition |
US5479861A (en) * | 1994-01-03 | 1996-01-02 | Kinchin; Anthony E. | Projectile with sabot |
WO1999051933A1 (en) * | 1998-04-03 | 1999-10-14 | Sabot Technologies, Inc. | Sabot pressure wad |
US6067909A (en) * | 1998-04-03 | 2000-05-30 | Sabot Technologies, Inc. | Sabot pressure wad |
US6899034B1 (en) * | 1998-06-30 | 2005-05-31 | Charles H. Glover | Controlled energy release projectile |
US7640860B1 (en) * | 1998-06-30 | 2010-01-05 | Glover Charles H | Controlled energy release projectile |
US6547685B2 (en) | 1999-01-22 | 2003-04-15 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transaxle apparatus |
US6484827B2 (en) | 1999-03-26 | 2002-11-26 | Deere & Company | Drive and steer vehicle |
US6363856B1 (en) * | 1999-06-08 | 2002-04-02 | Roscoe R. Stoker, Jr. | Projectile for a small arms cartridge and method for making same |
US6502516B1 (en) | 2000-01-18 | 2003-01-07 | Anthony E. Kinchin | Sabot shotgun slug assembly |
US7201104B2 (en) | 2002-08-21 | 2007-04-10 | Ra Brands, L.L.C. | Lead attached sabot slug |
US20070119330A1 (en) * | 2002-08-21 | 2007-05-31 | Ra Brands, L.L.C. | Lead Attached Sabot Slug |
US20040079256A1 (en) * | 2002-08-21 | 2004-04-29 | Mcmurray Christopher R. | Lead attached sabot slug |
US8261667B2 (en) | 2002-08-21 | 2012-09-11 | Ra Brands, L.L.C. | Lead attached sabot slug |
US7000547B2 (en) | 2002-10-31 | 2006-02-21 | Amick Darryl D | Tungsten-containing firearm slug |
US20050155511A1 (en) * | 2003-12-29 | 2005-07-21 | Neil Keegstra | Extended range less lethal projectile |
US7350465B2 (en) * | 2003-12-29 | 2008-04-01 | Neil Keegstra | Extended range less lethal projectile |
US10082374B2 (en) | 2014-08-01 | 2018-09-25 | James Nicholas Marshall | Magnetic ammunition for air guns and biodegradable magnetic ammunition for airguns |
US20230043486A1 (en) * | 2022-09-16 | 2023-02-09 | Dahua XIANG | High-precision spherical single-headed bullet |
Also Published As
Publication number | Publication date |
---|---|
ATA521680A (en) | 1982-04-15 |
ES265663Y (en) | 1984-05-16 |
NO148307B (en) | 1983-06-06 |
ES8207343A1 (en) | 1982-09-01 |
IT7926831A0 (en) | 1979-10-26 |
SE447508B (en) | 1986-11-17 |
GB2061470A (en) | 1981-05-13 |
FR2468870A1 (en) | 1981-05-08 |
PT71909A (en) | 1980-11-01 |
DK157417B (en) | 1990-01-02 |
DK157417C (en) | 1990-05-28 |
GB2061470B (en) | 1983-08-10 |
IT1196905B (en) | 1988-11-25 |
US4419318A (en) | 1983-12-06 |
GR70668B (en) | 1982-12-06 |
DE3039880A1 (en) | 1981-09-03 |
NO803191L (en) | 1981-04-27 |
FR2468870B1 (en) | 1986-07-04 |
PT71909B (en) | 1981-08-31 |
AT369162B (en) | 1982-12-10 |
BE885882A (en) | 1981-04-24 |
DK449880A (en) | 1981-04-27 |
ES265663U (en) | 1983-01-01 |
ES507171A0 (en) | 1982-09-01 |
NL8005697A (en) | 1981-04-28 |
DE3039880C2 (en) | 1991-12-19 |
SE8007412L (en) | 1981-04-27 |
NO148307C (en) | 1983-09-14 |
LU82881A1 (en) | 1981-03-24 |
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Legal Events
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FPAY | Fee payment |
Year of fee payment: 4 |
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LAPS | Lapse for failure to pay maintenance fees | ||
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 19921020 |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |